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本工作研究了以Ｐ５０７为载体的支撑液膜体系中，搅拌速率、温度、原料相中Ｎｉ２＋离子起始浓度、载体浓度以及反萃相酸度等因素对Ｎｉ２＋离子迁移的影响。实验结果表明。搅拌速率达到５００ｒｐｍ以上对Ｎｉ２＋离子迁移通量影响不大；迁移通量随着原料相中Ｎｉ２＋离子起始浓度增加到４．５ｍｍｏｌ／ｌ以上时基本上不再增加，这说明此时膜内络合物浓度已接近饱和；从Ａｒｒｈｅｎｉｕｓ关系得到的迁移活化能为３６．６ｋＪ／ｍｏｌ。本文从理论上得到了一个同时包含原料相酸度、膜相载体浓度以及反萃相酸度等因素的金属离子过移动力学速率方程，它能较好地解释这些因素对Ｎｉ２＋离子迁移通量的影响规律。
In this work, the effects of stirring rate, temperature, initial concentration of Ni2 +, carrier concentration and acidity of stripping phase on the migration of Ni2 + ions were investigated in a supported liquid membrane system using P507 as carrier. Experimental results show. The stirring rate above 500rpm had little effect on the migration flux of Ni2 + ions. The migration flux basically did not increase when the initial concentration of Ni2 + ion in the material phase increased to 4.5mmol / l or above, The concentration of the compound is close to saturation; the activation energy of migration obtained from the Arrhenius relation is 36.6 kJ / mol. In this paper, a kinetic rate equation of metal ions containing both the acidity of phase material, the concentration of carrier phase and the acidity of stripping phase was obtained theoretically, which can better explain the influence of these factors on the migration flux of Ni2 + ions .